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Vector<Rectangle> vRectangle = new Vector<Rectangle>();
Rectangle selectionRectangle = new Rectangle();
vRectangle.add(frm.selectionRectangle);
System.out.println("frm.selectionRectangle------------" +
frm.selectionRectangle);
System.out.println("vRectangle" + vRectangle);
System.out.println("vRectangle.size() " + vRectangle.size());
//第一次添加
frm.selectionRectangle------------java.awt.Rectangle[x=223,y=125,width=338,height=195]
vRectangle[java.awt.Rectangle[x=223,y=125,width=338,height=195]]
vRectangle.size() 1
//第二次添加
frm.selectionRectangle------------java.awt.Rectangle[x=287,y=369,width=358,height=140]
vRectangle[java.awt.Rectangle[x=287,y=369,width=358,height=140], java.awt.Rectangle[x=287,y=369,width=358,height=140]]
vRectangle.size() 2